1 "Gaseous oxygen is supplied from the high pressure cylinder." What kind of form is oxygen in the above sentence?
A.固态的 B.气态的 C.液态的 D.自然的正确答案B
1 "Gaseous oxygen is supplied from the high pressure cylinder." What kind of form is oxygen in the above sentence?
A.固态的 B.气态的 C.液态的 D.自然的正确答案B